The Zoning Administrator’s meeting is set for 9 a.m. Wednesday, May 11, in the council chamber of the Farrel A. Stewart Civic Center, 1950 Parkside Drive. 925-671-3454.

The Parks, Recreation and Open Space Commission is scheduled to meet at 7 p.m. Wednesday, May 11, in the council chamber of the Civic Center. Commission meetings are televised live on Comcast Channel 28 and Astound Channel 29. 925-671-3414.

The Design Review Board is scheduled to meet at 5:30 p.m. Thursday, May 12, in the Permit Center conference room (Wing D) of the Civic Center. 925-671-3044.

Clayton

The Planning Commission is scheduled to meet at 7 p.m. Tuesday, May 10, in Hoyer Hall of the Clayton Community Library, 6125 Clayton Road. 925-673-7340.

School district

The Mt. Diablo Unified School District board of education is set to meet at 7:30 p.m. Tuesday, May 10, in the James W. Dent Education Center, 1936 Carlotta Drive, Concord. 925-682-8000.

County

The Aviation Advisory Committee is set to meet at noon Thursday, May 5, in the Buchanan Field manager of airport’s conference room, 550 Sally Ride Drive, Concord. 925-646-5722.

The Contra Costa County Mayors’ Conference is scheduled to meet at 6:30 p.m. Thursday, May 5, hosted by the city of Oakley, at Oakley City Council Chamber, 3231 Main St. 925-324-0723.

Transpac is set for 9 a.m. Thursday, May 12, in the community room of the Pleasant Hill City Hall, 100 Gregory Lane. 925-671-5250.

The Economic Opportunity Council is scheduled to meet at 7 p.m. Thursday, May 12, in the Community Services Department conference rooms, 2425 Bisso Lane, Concord. 925-313-7387.